Results 221 to 230 of about 1,371 (244)
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Thin Solid Films, 2010
Recent theoretical and experimental research showed that the response of micro/nanocantilevers to detect materials is not always simply related to extra mass. Stiffness of adsorbates and surface stress-induced changes in the stiffness, arising from adsorption, can produce frequency shifts that are several times greater in magnitude than those induced ...
Hamed Sadeghian +3 more
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Recent theoretical and experimental research showed that the response of micro/nanocantilevers to detect materials is not always simply related to extra mass. Stiffness of adsorbates and surface stress-induced changes in the stiffness, arising from adsorption, can produce frequency shifts that are several times greater in magnitude than those induced ...
Hamed Sadeghian +3 more
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ASME 2010 Summer Bioengineering Conference, Parts A and B, 2010
The extracellular matrix (ECM) is a fibrous structure embedded in an aqueous gel. The mechanical and electrostatic interactions of the ECM constituents, i.e. collagen fibers and proteoglycans (PGs), define the structure and mechanical response of connective tissues (CTs) such as cornea and articular cartilage.
Hamed Hatami-Marbini, Peter M. Pinsky
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The extracellular matrix (ECM) is a fibrous structure embedded in an aqueous gel. The mechanical and electrostatic interactions of the ECM constituents, i.e. collagen fibers and proteoglycans (PGs), define the structure and mechanical response of connective tissues (CTs) such as cornea and articular cartilage.
Hamed Hatami-Marbini, Peter M. Pinsky
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A Frequency Selective Silicon Vibration Sensor with Direct Electrostatic Stiffness Modulation
Analog Integrated Circuits and Signal Processing, 2003In the field of industrial machinery an increasing demand for low cost vibration measurement equipment exists. The described frequency selective structures represent a low-cost alternative to the commonly used wide band accelerometers. To continuously cover a wide frequency range with a small number of resonators the sensor structures possess a ...
Dirk Scheibner +5 more
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Applied Physics Letters, 2019
Contact bounce, high driving voltage, and poor robustness to process deviations are the main bottlenecks that limit the reliability of MEMS electrostatic switches. In this study, a variable stiffness strategy offers an optimized path to reach the closure position for the movable electrode. In the proposed method, the switching system's stiffness is low
Xiaojian Xiang +5 more
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Contact bounce, high driving voltage, and poor robustness to process deviations are the main bottlenecks that limit the reliability of MEMS electrostatic switches. In this study, a variable stiffness strategy offers an optimized path to reach the closure position for the movable electrode. In the proposed method, the switching system's stiffness is low
Xiaojian Xiang +5 more
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A Dual-Axis Resonant Accelerometer Based on Electrostatic Stiffness Modulation in Epi-Seal Process
2019 IEEE SENSORS, 2019We report on the implementation of a novel vacuum-encapsulated dual-axis resonant accelerometer utilizing electrostatic stiffness modulation. Novel flexure designs are used to enable fully-decoupled in-plane dual-axis translational motions of the proof-mass to achieve low cross-axis sensitivity with the translational mode frequencies above 20 kHz for ...
Seungyong Shin +5 more
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Role of polymer graft stiffness in electrostatic-driven self-assembly of nanoparticles in solutions
Physical Chemistry Chemical PhysicsNanoparticles (NPs) grafted with semi-flexible/rigid polyion chains self-assemble to form rings, strings, and percolated structures, with potential applications in thermal underfilling, neuromorphic devices, and biological systems.
Rajesh Pavan Pothukuchi +1 more
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The Journal of the Acoustical Society of America, 2006
A theoretical model for micromachined capacitive or electrostatic ultrasonic transducers (mCUT or cMUT) was presented [L.-F. Ge, Theoretical and Computational Acoustic 2001, edited by E.-C. Shang et al., World Sci., 459–469, 2002; Proc. 18th Intl. Conf. Acoustics, Vol. III, 2255–2258, 2004].
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A theoretical model for micromachined capacitive or electrostatic ultrasonic transducers (mCUT or cMUT) was presented [L.-F. Ge, Theoretical and Computational Acoustic 2001, edited by E.-C. Shang et al., World Sci., 459–469, 2002; Proc. 18th Intl. Conf. Acoustics, Vol. III, 2255–2258, 2004].
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IEEE Transactions on Visualization and Computer Graphics
Handheld haptic devices often face challenges in delivering stiffness feedback with both high force output and good backdrivability, especially under practical constraints on power consumption, size, and weight. These difficulties stem from the inherent performance limitations of conventional actuation mechanisms.
Ke Shi 0006 +4 more
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Handheld haptic devices often face challenges in delivering stiffness feedback with both high force output and good backdrivability, especially under practical constraints on power consumption, size, and weight. These difficulties stem from the inherent performance limitations of conventional actuation mechanisms.
Ke Shi 0006 +4 more
openaire +2 more sources
Adaptive-Twist Airfoil Based on Electrostatic Stiffness Variation
22nd AIAA/ASME/AHS Adaptive Structures Conference, 2014Wolfram Raither +4 more
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